Abstract: In this article, a 3-D projection-based beam ray launching (PB-RL) method is proposed for improving the efficiency of ray-tracing (RT) channel modeling. PB-RL utilizes the projection concept ...

Abstract: Terminal positioning using a single low earth orbit (LEO) communication satellite is an important means to compensate for the loss of positioning capability under global navigation satellite ...

The mother of a 15-year-old California boy who took his own life is now suing Roblox and Discord over his death, alleging her son was groomed and coerced to send explicit images on the apps. Rebecca ...

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